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Finding the Fourth Proportional to 19,563.28, 26,992.20 and 11,607.28

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Solution

The fourth proportional to 19,563.28, 26,992.20 and 11,607.28 is: 16,015.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.28 : 26,992.20 = 11,607.28 : x
  2. Step 2: Convert to fraction form
    19,563.28/26,992.20 = 11,607.28/x
  3. Step 3: Cross multiply
    19,563.28x = 26,992.20 × 11,607.28
  4. Step 4: Simplify right side
    19,563.28x = 313,306,023.22
  5. Step 5: Solve for x
    x = 313,306,023.22/19,563.28
  6. Step 6: Final answer
    x = 16,015.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.